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<head><meta charset="utf-8"><title>weekly meeting November 20 · t-compiler/wg-nll · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/index.html">t-compiler/wg-nll</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html">weekly meeting November 20</a></h3>

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<a name="148065787"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148065787" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148065787">(Nov 20 2018 at 20:32)</a>:</h4>
<p>Hi <span class="emoji emoji-1f44b" title="wave">:wave:</span> <span class="user-group-mention" data-user-group-id="491">@WG-compiler-nll</span></p>



<a name="148065835"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148065835" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148065835">(Nov 20 2018 at 20:32)</a>:</h4>
<p>Triage document: <a href="https://paper.dropbox.com/doc/Non-lexical-lifetimes-NLL-Triage-Em2cJrvxQMMFWLE7lE5Be" target="_blank" title="https://paper.dropbox.com/doc/Non-lexical-lifetimes-NLL-Triage-Em2cJrvxQMMFWLE7lE5Be">link</a></p>



<a name="148066036"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066036" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066036">(Nov 20 2018 at 20:35)</a>:</h4>
<p>So a couple of things</p>



<a name="148066044"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066044" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066044">(Nov 20 2018 at 20:35)</a>:</h4>
<p>First off, I sketched out some notes for "what's next"</p>



<a name="148066047"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066047" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066047">(Nov 20 2018 at 20:35)</a>:</h4>
<p>now that NLL is shipping</p>



<a name="148066052"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066052" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066052">(Nov 20 2018 at 20:35)</a>:</h4>
<p>or very nearly shipping</p>



<a name="148066053"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066053" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066053">(Nov 20 2018 at 20:35)</a>:</h4>
<p>secondly,</p>



<a name="148066095"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066095" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066095">(Nov 20 2018 at 20:36)</a>:</h4>
<p>we should talk about how we organize etc</p>



<a name="148066105"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066105" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066105">(Nov 20 2018 at 20:36)</a>:</h4>
<p>for one thing, I may not be able to make this time slot every week anymore</p>



<a name="148066114"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066114" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066114">(Nov 20 2018 at 20:36)</a>:</h4>
<p>my sense is that there is actually still a fair amount of work to be done around NLL</p>



<a name="148066137"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066137" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066137">(Nov 20 2018 at 20:36)</a>:</h4>
<p>though it may make sense to "take a break"</p>



<a name="148066142"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066142" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066142">(Nov 20 2018 at 20:37)</a>:</h4>
<p>let the current code sit, fix some bugs</p>



<a name="148066154"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066154" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066154">(Nov 20 2018 at 20:37)</a>:</h4>
<p>and start to "revisit" after that</p>



<a name="148066169"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066169" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066169">(Nov 20 2018 at 20:37)</a>:</h4>
<p>(among other things, I feel like there is lots of code cleanup to be done)</p>



<a name="148066181"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066181" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066181">(Nov 20 2018 at 20:37)</a>:</h4>
<p>some of which <span class="user-mention" data-user-id="116118">@Matthew Jasper</span> already started in on :)</p>



<a name="148066276"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066276" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066276">(Nov 20 2018 at 20:38)</a>:</h4>
<p>but we've also just not completely removed the old system</p>



<a name="148066285"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066285" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066285">(Nov 20 2018 at 20:38)</a>:</h4>
<p>anyway, re: the time slot, it seems like there aren't <em>so many</em> of us attending anymore anyway</p>



<a name="148066289"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066289" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066289">(Nov 20 2018 at 20:38)</a>:</h4>
<p>so I imagine we can find a new slot</p>



<a name="148066330"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066330" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066330">(Nov 20 2018 at 20:39)</a>:</h4>
<p>I'm fairly flexible w/r/t time, as long as I'm not asleep when it happens I can probably attend.</p>



<a name="148066393"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066393" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066393">(Nov 20 2018 at 20:40)</a>:</h4>
<p>thoughts on what we should be doing over the next few weeks? </p>
<p>Some things to consider:</p>
<ul>
<li>the remainder of <em>this week</em> is a holiday in the US</li>
<li>Dec 3–7 is mozilla all hands</li>
<li>Rust 2018 release is Dec 6</li>
</ul>



<a name="148066399"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066399" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066399">(Nov 20 2018 at 20:40)</a>:</h4>
<blockquote>
<p>I'm fairly flexible w/r/t time, as long as I'm not asleep when it happens I can probably attend.</p>
</blockquote>
<p>yeah me too</p>



<a name="148066402"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066402" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Matthew Jasper <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066402">(Nov 20 2018 at 20:40)</a>:</h4>
<p>I like the current time, but don't mind which day we choose.</p>



<a name="148066413"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066413" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066413">(Nov 20 2018 at 20:41)</a>:</h4>
<p>ok</p>



<a name="148066421"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066421" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066421">(Nov 20 2018 at 20:41)</a>:</h4>
<blockquote>
<p>I like the current time, but don't mind which day we choose.</p>
</blockquote>
<p>same for me</p>



<a name="148066435"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066435" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066435">(Nov 20 2018 at 20:41)</a>:</h4>
<p>I could do wed at this time I think</p>



<a name="148066443"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066443" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066443">(Nov 20 2018 at 20:41)</a>:</h4>
<blockquote>
<p>thoughts on what we should be doing over the next few weeks? </p>
<p>Some things to consider:</p>
<ul>
<li>the remainder of <em>this week</em> is a holiday in the US</li>
<li>Dec 3–7 is mozilla all hands</li>
<li>Rust 2018 release is Dec 6</li>
</ul>
</blockquote>
<p>I was wondering what to do after this issue I'm working on</p>



<a name="148066450"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066450" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066450">(Nov 20 2018 at 20:41)</a>:</h4>
<p>I can jump into the <code>Place</code> thing</p>



<a name="148066453"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066453" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066453">(Nov 20 2018 at 20:41)</a>:</h4>
<p>a good question</p>



<a name="148066465"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066465" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066465">(Nov 20 2018 at 20:41)</a>:</h4>
<p>unsure what else do you consider important</p>



<a name="148066471"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066471" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066471">(Nov 20 2018 at 20:42)</a>:</h4>
<p>last week we were talking about the NLL-sound things</p>



<a name="148066518"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066518" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066518">(Nov 20 2018 at 20:42)</a>:</h4>
<p>that is, <a href="https://github.com/rust-lang/rust/labels/NLL-sound" target="_blank" title="https://github.com/rust-lang/rust/labels/NLL-sound">these issues</a></p>



<a name="148066522"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066522" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066522">(Nov 20 2018 at 20:42)</a>:</h4>
<p>it's still be nice to close those out</p>



<a name="148066523"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066523" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066523">(Nov 20 2018 at 20:42)</a>:</h4>
<p>some of them are non-trivial</p>



<a name="148066540"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066540" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066540">(Nov 20 2018 at 20:42)</a>:</h4>
<p><span class="emoji emoji-1f44d" title="+1">:+1:</span></p>



<a name="148066542"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066542" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066542">(Nov 20 2018 at 20:42)</a>:</h4>
<p>maybe <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> we can work through <a href="https://github.com/rust-lang/rust/issues/55511" target="_blank" title="https://github.com/rust-lang/rust/issues/55511">https://github.com/rust-lang/rust/issues/55511</a></p>



<a name="148066550"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066550" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066550">(Nov 20 2018 at 20:42)</a>:</h4>
<p>it'd be nice for <span class="user-mention" data-user-id="116107">@davidtwco</span>'s current PR to land first probably</p>



<a name="148066567"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066567" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066567">(Nov 20 2018 at 20:43)</a>:</h4>
<blockquote>
<p>maybe <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> we can work through <a href="https://github.com/rust-lang/rust/issues/55511" target="_blank" title="https://github.com/rust-lang/rust/issues/55511">https://github.com/rust-lang/rust/issues/55511</a></p>
</blockquote>
<p>sure</p>



<a name="148066582"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066582" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066582">(Nov 20 2018 at 20:43)</a>:</h4>
<p>As much as I said I'd like to have had that done last week, I'd like to get that in over the next day or so.</p>



<a name="148066679"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066679" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066679">(Nov 20 2018 at 20:44)</a>:</h4>
<p>I think for myself what I would like to do — and I may try to do it today, though I may wind up just doing reviews intead — is to try and sketch out some next steps around removing uses of the old borrow checker and moving to polonius</p>



<a name="148066684"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066684" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066684">(Nov 20 2018 at 20:44)</a>:</h4>
<p>it's been hard to find a space of time to concentrate on that</p>



<a name="148066687"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066687" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066687">(Nov 20 2018 at 20:44)</a>:</h4>
<p>basically I want to try and map out a roadmap</p>



<a name="148066929"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066929" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066929">(Nov 20 2018 at 20:48)</a>:</h4>
<p>well, maybe that's enough for this week?</p>



<a name="148066937"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148066937" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148066937">(Nov 20 2018 at 20:48)</a>:</h4>
<p>it's good to have a quiet week sometimes <span class="emoji emoji-263a" title="smile">:smile:</span></p>



<a name="148067097"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067097" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067097">(Nov 20 2018 at 20:51)</a>:</h4>
<p>Sounds good, I'm sure things are busy with the wednesday cutoff this week for 2018.</p>



<a name="148067111"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067111" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067111">(Nov 20 2018 at 20:51)</a>:</h4>
<p>sounds great <span class="user-mention" data-user-id="116009">@nikomatsakis</span></p>



<a name="148067118"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067118" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067118">(Nov 20 2018 at 20:51)</a>:</h4>
<p>We should make a poll of some sort to schedule the next meeting though.</p>



<a name="148067412"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067412" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067412">(Nov 20 2018 at 20:55)</a>:</h4>
<p>yeah I suppose, or we could just opt for wednesday at this same time slot</p>



<a name="148067459"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067459" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Keith Yeung <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067459">(Nov 20 2018 at 20:56)</a>:</h4>
<p>fine with me</p>



<a name="148067473"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067473" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067473">(Nov 20 2018 at 20:56)</a>:</h4>
<p>Wednesday same time works for me.</p>



<a name="148067487"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067487" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067487">(Nov 20 2018 at 20:56)</a>:</h4>
<p>fine for me too</p>



<a name="148067534"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067534" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067534">(Nov 20 2018 at 20:57)</a>:</h4>
<p>let's just do that</p>



<a name="148067540"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067540" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067540">(Nov 20 2018 at 20:57)</a>:</h4>
<p>I've done enough doodle polls in my life</p>



<a name="148067545"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067545" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067545">(Nov 20 2018 at 20:57)</a>:</h4>
<p>I have no desire to do another :P</p>



<a name="148067550"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067550" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067550">(Nov 20 2018 at 20:57)</a>:</h4>
<p>we can always change it again</p>



<a name="148067687"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067687" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067687">(Nov 20 2018 at 20:59)</a>:</h4>
<p>I updated the NLL tracking issue with the new day.</p>



<a name="148067760"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148067760" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148067760">(Nov 20 2018 at 21:00)</a>:</h4>
<p>oh, thanks, I was just about to go do that :)</p>



<a name="148068172"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148068172" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Keith Yeung <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148068172">(Nov 20 2018 at 21:06)</a>:</h4>
<p>looks like the remaining NLL-sound issues are mostly spun off from <a href="https://github.com/rust-lang/rust/issues/47184" target="_blank" title="https://github.com/rust-lang/rust/issues/47184">#47184</a></p>



<a name="148068196"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148068196" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Keith Yeung <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148068196">(Nov 20 2018 at 21:07)</a>:</h4>
<p>that, or it's being blocked by other things external to NLL</p>



<a name="148068315"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148068315" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Keith Yeung <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148068315">(Nov 20 2018 at 21:09)</a>:</h4>
<p>perhaps we can also dive into <span class="emoji emoji-1f438" title="frog">:frog:</span> if we so desire</p>



<a name="148068417"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148068417" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Keith Yeung <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148068417">(Nov 20 2018 at 21:10)</a>:</h4>
<p>(or let <span class="emoji emoji-1f438" title="frog">:frog:</span> dive into you, whichever fits)</p>



<a name="148068591"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148068591" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148068591">(Nov 20 2018 at 21:13)</a>:</h4>
<p>I'm caught up now in some beta backports but I'd love to start talking about the <span class="emoji emoji-1f438" title="frog">:frog:</span> roadmap -- perhaps next week</p>



<a name="148069794"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148069794" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> blitzerr <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148069794">(Nov 20 2018 at 21:32)</a>:</h4>
<p>What is that emoji ? I'm not hip enough to figure that out <span class="emoji emoji-1f600" title="grinning">:grinning:</span></p>



<a name="148069821"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148069821" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Keith Yeung <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148069821">(Nov 20 2018 at 21:32)</a>:</h4>
<p><span class="emoji emoji-1f438" title="frog">:frog:</span> is polonius</p>



<a name="148069829"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148069829" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Keith Yeung <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148069829">(Nov 20 2018 at 21:32)</a>:</h4>
<p><a href="https://github.com/rust-lang-nursery/polonius" target="_blank" title="https://github.com/rust-lang-nursery/polonius">https://github.com/rust-lang-nursery/polonius</a></p>



<a name="148069843"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148069843" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Keith Yeung <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148069843">(Nov 20 2018 at 21:33)</a>:</h4>
<p>because the underlying logic engine used for polonius is something called datafrog</p>



<a name="148069860"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148069860" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> blitzerr <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148069860">(Nov 20 2018 at 21:33)</a>:</h4>
<p>I thought polonius was there character from Hamlet and that's what we named the new borrow checker on <span class="emoji emoji-1f604" title="big smile">:big_smile:</span></p>



<a name="148069969"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148069969" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Keith Yeung <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148069969">(Nov 20 2018 at 21:35)</a>:</h4>
<p>polonius has many names, <span class="emoji emoji-1f438" title="frog">:frog:</span> is one of them</p>



<a name="148070237"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148070237" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> blitzerr <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148070237">(Nov 20 2018 at 21:39)</a>:</h4>
<p>Good to know</p>



<a name="148070245"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148070245" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> blitzerr <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148070245">(Nov 20 2018 at 21:39)</a>:</h4>
<p>Thanks <span class="user-mention" data-user-id="116108">@Keith Yeung</span>  <span class="emoji emoji-1f600" title="grinning">:grinning:</span></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/weekly%20meeting%20November%2020/near/148141693" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/weekly.20meeting.20November.2020.html#148141693">(Nov 21 2018 at 22:41)</a>:</h4>
<p>(sorry for not being able to come to the meetings recently, feel free to ping me if anybody needs to, polonius or anything, and I will find the time to answer)</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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